Description
Traefik is an open source HTTP reverse proxy and load balancer. In affected versions there is a potential vulnerability in Traefik managing TLS connections. A router configured with a not well-formatted TLSOption is exposed with an empty TLSOption. For instance, a route secured using an mTLS connection set with a wrong CA file is exposed without verifying the client certificates. Users are advised to upgrade to version 2.9.6. Users unable to upgrade should check their logs to detect the error messages and fix your TLS options.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| traefik | traefik | < 2.9.6 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | traefik | 2.9.6-1.1 | openSUSE-SU-2024:12615-1 |
| openSUSE Tumbleweed | traefik2 | 2.11.5-1.1 | openSUSE-SU-2024:14076-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | traefik | 2.9.6-r0 | — |
| Alpine v3.23 | traefik | 2.9.6-r0 | — |
| Alpine v3.22 | traefik | 2.9.6-r0 | — |
| Alpine v3.21 | traefik | 2.9.6-r0 | — |
| Alpine v3.20 | traefik | 2.9.6-r0 | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | traefik | 2.9.6-r0 | — |
| Alpine v3.18 | traefik | 2.9.6-r0 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/traefik/traefik | all versions | — | GO-2022-1152 |
| Go | github.com/traefik/traefik/v2 | < 2.9.6 | 2.9.6 | GHSA-468w-8x39-gj5v |
Advisories 3
- openSUSE-SU-2024:12615-1 traefik-2.9.6-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:14076-1 traefik2-2.11.5-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2023-1813 Oracle Communications Applications: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jul 18, 2023